0
点赞
收藏
分享

微信扫一扫

event-ruler 简单试用

event-ruler 目前event-ruler 似乎还没有发布 maven 仓库,可以自己构建

构建命令

mvn clean package install  -Dmaven.test.skip

参考使用

package com.dalong;

import software.amazon.event.ruler.Machine;

import software.amazon.event.ruler.RuleCompiler;

import software.amazon.event.ruler.Ruler;

import java.util.List;

public class App {

public static void main(String[] args) throws Exception {

String rule1 = "{ \"a\" : [ { \"prefix\": \"zoo\" } ] }";

String rule2 = "{ \"b\" : [ { \"prefix\": \"child\" } ] }";

 

// use Machine

Machine machine = new Machine();

machine.addRule("r1", rule1);

machine.addRule("r2", rule2);

String[][] events = {

"a", "\"zookeeper\""},

"a", "\"zoo\""},

"b", "\"childlike\""},

"b", "\"childish\""},

"b", "\"childhood\""}

};

for (String[] event : events) {

List<String> rules = machine.rulesForEvent(event);

System.out.println(rules.toString());

}

// use Ruler static function

Boolean result = Ruler.matchesRule("{\"a\": \"zookeeper\"}", "{ \"a\" : [{ \"prefix\": \"zoo\" }]}");

System.out.println(result);

// compiler

 

String compileResult = RuleCompiler.check("{ \"a\" : [{ \"prefix\": \"zoo\" }]}");

System.out.println(compileResult);

}

}

 

说明

实际上对于基于json 的处理,json schema,都是不错的选择,但是很多时候我们需要的规则可能比较复杂,同时也需要一个不错的性能,基于event-ruler 是一个不错的
选择,比如我们可以集成此rule 在gateway 中,实现一个灵活的业务校验以及数据路由

参考资料

​​https://github.com/aws/event-ruler#ruler-by-example​​

举报

相关推荐

0 条评论